Hi upguy!
I love what you've done with the Georgian Mansion kits!:thumb:
I think going with the flat roof was a great idea, giving that structure a real urban/industrial type look...very much different from the original!
Now that you've got that nice, big, flat roof, you can go crazy detailing the heck out of it! You can add another story or two to part of the building, or perhaps a wood, or corrugated structure up there...chimneys, pipes, vents, AC units, tanks...nothing enhances the look of an industrial building like roof details!